Home / 188,550.45-260,142.03-124,001.28

Finding the Fourth Proportional to 188,550.45, 260,142.03 and 124,001.28

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Solution

The fourth proportional to 188,550.45, 260,142.03 and 124,001.28 is: 171,083.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    188,550.45 : 260,142.03 = 124,001.28 : x
  2. Step 2: Convert to fraction form
    188,550.45/260,142.03 = 124,001.28/x
  3. Step 3: Cross multiply
    188,550.45x = 260,142.03 × 124,001.28
  4. Step 4: Simplify right side
    188,550.45x = 32,257,944,701.80
  5. Step 5: Solve for x
    x = 32,257,944,701.80/188,550.45
  6. Step 6: Final answer
    x = 171,083.89

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.